$(document).ready(function(){
	$.datepicker.regional['zh-CN'] = { 
        closeText: '关闭', 
        prevText: '<上月', 
        nextText: '下月>', 
        currentText: '今天', 
        monthNames: ['一月','二月','三月','四月','五月','六月', 
        '七月','八月','九月','十月','十一月','十二月'], 
        monthNamesShort: ['一','二','三','四','五','六', 
        '七','八','九','十','十一','十二'], 
        dayNames: ['星期日','星期一','星期二','星期三','星期四','星期五','星期六'], 
        dayNamesShort: ['周日','周一','周二','周三','周四','周五','周六'], 
        dayNamesMin: ['日','一','二','三','四','五','六'], 
        weekHeader: '周', 
        dateFormat: 'yy-mm-dd', 
        firstDay: 1, 
        isRTL: false, 
        showMonthAfterYear: true, 
        yearSuffix: '年'}; 
    $.datepicker.setDefaults($.datepicker.regional['zh-CN']);  

	 $( "#from_date" ).datepicker({
	 	  theme:5,
	      defaultDate: "+1w",
	      changeMonth: true,
	      onClose: function( selectedDate ) {
	        $( "#from_date" ).datepicker( "option", "minDate", selectedDate );
	        if($( "#from_date" ).val()!==''){
	        	$(".date_select").submit();
	        }
	      }
	    });

	   $( "#to_date" ).datepicker({
	      defaultDate: "+1w",
	      changeMonth: true,
	      onClose: function( selectedDate ) {
	        $( "#from_date" ).datepicker( "option", "maxDate", selectedDate );
	      	if($( "#to_date" ).val()!==''){
	        	$(".date_select").submit();
	        }
	      }
	      
	    });
})